Pattern-cutting device.



H. N. STEINMAN.

PATTERN CUTTING DEVICE. APPLICATION FILED OCT. 22, 1914.

l 1 8&4U90 Patented May 16, 1916.

2 SHEETSSHEET I.

H. N. STEINMAN.

PATTERN CUTTING DEVICE. APPLICATION FILED OCT. 22. 1914.

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g I 5 12 1 7 6A 5 1\ k W s. V 26 a Patented May16, 1916.

'2 SHEETS-SHEET 2- Cook and State of it being is ting patterns,

at edge is thus obtained.

HARRY N. STEINMAN,

antenna-comma nnvrcn.

To all whom it may concern:

Be it known that I, HARRY N. STEINMAN, a citizen of the United States,and a resident of the city of Chicago, in the county of Illinois, haveinvented certain new and useful Improvements in Pattern-Cutting Devices;and I do hereby declare that the following is a full, clear, and exactdescription of the same, reference had to the accompanying drawings, andto the numerals of reference marked thereon, which form a part of thisspecification.

This invention relates to a device for cutalthough it is well adaptedfor use for many other similar purposes. The mechanism embraces powerdriven cutting disks coacting with one another to cut a material, eithercloth or paper, as the case an may be, from both sides simultaneously,thus finishing both edges'of the severed fabric and acting also todistribute a small quantity of oil along the cut, so that in the case ofpaper patterns a finished and protected An illuminating means is alsoassociated with the device adapted to direct a beam of light directlydownwardly upon the path to be taken by the cutter, which is movable inthe hands of the an operator and capable of being guided and turned tofollow even the most irregular path.

It is an object of this invention to construct a power driven cuttingdevice movat able from point to point under the guidance of an operator,rapidly cutting a material and leaving a clean sharp edge.

It is also an object of this invention to construct a cutting deviceembracing out ting disks the cutting edges of which bear closely againstone another, and with power driven mechanisms for driving said cuttingdisks.

It is also an important object of this in- 5 vention to construct acutting device mounted upon a carriage adapted to be moved from point topoint under the guidance of an operator and with vertically revolvingcutting disks mounted on said carriage acting to cut the material as thecarriage is advanced and the material passes upwardly upon the same.

It is furthermore an important object of this invention to construct acutting device embracing rotatable cutting members mounted upon acarriage and driven from W specification of Letters ratent.

Application filed October 22, 191%.

Patented May re, rare. Serial no. team.

a suitable source of power and capable of guidance from place to placeunder the hand of an operator, at the same time feeding a flow of 01 orgrease to the edges of the material cut, the power driving means soconnected with the cutting mechanism as to be readily connected ordisconnected therefrom by means associated with the handle of thedevice.

It is finally an object of this invention to construct a power drivenilluminated cutting device adapted to be moved from point to point underthe guidance of the hand of an operator and to direct a flow of heatedgrease to the cut edges of the material operated upon.

he invention (in a preferred form) is illustrated in the drawings andhereinafter more fully describe In the drawings: Figure 1 is a sideelevat1on of a device embodying the principles of my invention. Fig. 2is a front View thereof. Fig. 3 is a fragmentary detail section taken online 3-3 of Fig. 2. Fig. 4: is a fragmentary detail section taken online of Fig. 1, with parts omitted and with parts in elevation. Fig. 5is a fragmentary detail section taken on line 55 of Fig. i. Fig. 6 is adetail section taken on line 63-45 of Fig. 3. Fig. 7 is a View partly insection and partly 1n elevation illustrating the clutch controllingmechanism mounted for control by a lever associated with the handle ofthe-device. Fig. 8 is a fragmentary detail view taken on line 8-8 ofFig. 2. Fig. 9 is a fragmentary side elevation illustrating theadjustable bearings which support the cutting'disks. Fig. 10 is afragmentary detail section taken on line 1010 of Fig. 9. Fig. 11 is adetail section taken on line 11 11 of Fig. 1.

As shown in the drawings: The cutting carriage 1, which top wall 2, anda bottom wall 3, with an inclined front wall 4, sloping upwardly fromthe bottom of the carriage to the top wall thereof. An integral framepiece is supported upon said carriage and consists of a flat plate 5,recessed into the top Wall 2, of the carriage and eX- tending upwardlytherefrom is a rectangular and vertically slotted housing or casing 6,which merges into the walls of a cylindrical portion 7. A bracket piece8, havin a slot 9 therein, is securely but adjustabl; mounted upon thecylindrical portion 7, by

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means of a screw or bolt 10, and said bracket piece, as clearly shown indetail in Fig. 10, is provided with an integral yoke piece 11, whichprojects into the slotted housing 6, and supports therein a small wormgear 12, keyed upon a shaft 13, which is journaled in said bracketpiece. A washer or collar 14, is engaged over the outer end of saidshort shaft 13, which is reduced in diameter and squared, as indicatedby the reference numeral 15, to receive an edged cutting disk 16,engaged thereon. A nut 17, is threaded on the outer end of said shaft13, and together with a spring washer 18, serves to maintain saidcutting disk 16, pressed resiliently inwardly toward said collar orwasher 14. Disposed just above said plate 5, and integral therewith, isa pointed or angled abutment member 19, which, as clearly shown in Fig.8, has an aperture therethrough through which a driving worm shaft 20,mounted in the tubular member 7, extends. Said driving worm shaft 20, asclearly shown in Figs. 3 and 4, is provided with an upper right handworm21, and a lower left hand worm '22, and at its lower end said shaftrests in a pivot bearing 23, formed in the bottom wall 3, of thecarriage. A tubular extension 24, integral with said plate 5, extendsdownwardly therefrom into the interior of the carriage 1, and throughwhich said driving worm shaft extends, and at its lower end, as clearlyshown in Figs. 3 and 9, affords a means of attachment for an adjustablebracket 25, in which a shaft 26, is journaled having secured thereon asmall worm gear 27 meshing with the worm 22, The worm wheel 12, ofcourse meshes with the worm 21, so that said respective worm wheels 12and 27 are driven in opposite directions, due to the right and left handarrangement of the driving worms. Secured upon said shaft 26, is anedged cutting disk 28, held thereon by a nut 29, and with a collar 30,interposed between the disk and the collar 25. Of course said plate 5,is provided with a slot therein, through which the respective cuttingdisks 16 and 28, which bear against one another for a portion of theirperipheries, project.

As clearly shown in Fig. 7, the upper tubular portion 7, is flangedoutwardly and provided 31, around which a tubular casing member 32,engages and rests upon the upper flanged portion of said tubular member7 A small inclosed electric motor 33, is supported upon the upper end ofsaid casing member 32, and the armature shaft 34, of said motor hasfeathered thereon a grooved male conical clutch member 35. The upper endof the driving worm shaft 20, is provided with a female clutch member36, and the lower extremity 37, ofthe motor shaft 34, is reduced indiameter and is journaled in the upper with a vertical and circularflange end of said driving worm shaft 20, thus insuring positivealinement of said respective shafts 34 and 20, at all times. Said casingmember 32, is provided with a lateral extension 38, upon which a handle39, is secured by means of one or more screws 40. Pivoted in a recess insaid lateral extension 38, is a bell crank 41, one arm of which isprovided with a long extension 42, closely adjacent the handle 39, andthe other extension of which is provided with a yoke 43, engaging thegrooved male clutch member 35. Consequently when wardly against thehandle 39, by the fingers of an operator, the clutch member 35, isthrust downwardly into engagement with the female clutch member 36, thuscausing the worm shaft 20, to be driven by the motor shaft of thedevice. Secured upon said casing member 32, by screws or any othersuitable attaching means is a small container 44, provided with aninsulating cover 45, from which heating coils 46, extend downwardly intosaid container. An outlet pipe 47, communicates with the bottom of saidcontainer 44, and leads downwardly into a position directly behind themeeting point of the cutting disks and said pipe is provided with asmall valve 48, at the upper end thereof." Said container is filled witha non-fluid grease or oil, and when it is desired to use the same, thecurrent is switched on through the heating coils 46, thereby raising thetemperature of the grease causing the same to liquefy and flow outthrough said the extension 42, is held uppipe 47. A protecting shield orhood49,

is formed on one side of said tubular member 7, and covers the greaterpart of the upper portion of the cutting dlsk 16, thus protecting anoperator in the use of the machine.

In order to facilitate the use of the device an electric bulb 50, ismounted on the forward end thereof in alinement with the handle 39, andis provided" with a shield or hood 51, to direct the light downwardly.-

upon the carriage and cutting disks.

In order to permit easy movement of the device from point to pointduring a cutting operation, a plurality of balls 52, are mounted insuitable recessesformed in the under surface of the lower wall 3, of thecarriage,

said balls being retained therein by suit able bushings 53.

The operation is as follows: During a cutting operation theoperator'merely grips the handle 39, maintaining the lever 42, upwardlythereagainst, which thus thrusts the male clutch member 35, intoengagement with the clutch member 36, effecting a driving connectionbetween the motor shaft 34 and the worm driving shaft 20. The right andleft hand worms 21 and 22, respectively, serve to drive the respectivecutting disks 16 and 28, through the respective worm lasagna gearsprovided therefor in opposite-directions, so that as the carriage 1, isadvanced, the material to be cut travels upwardly on the front inclinedwall 4, thereof and said disks readily sever the same. The pointed orangled member 19, which is positioned directly behind said cuttingdisks, acts to deflect one of the severed portions of the material toone side. The current for the heating coils 46, within the container 4%,may be switched on to heat the grease contents therein, and when thevalve L8, is opened, the grease flows downwardly and is directed bymeans of the pipe 47, upon the edges of the material cut. Theappllcation of grease to the edge of the cut material is sometimesdesirable as it forms a protective coating therefor. The adjustabilityof the bracket piece 8, which affords a bearing for the upper cuttingdisk 16, as Well as the bracket piece 25, affording a bearing for thelower disk 28, permits adjustment of said disks to compensate for wearwhen the same have been ground or sharpened. Of course the smallelectric bulb 50, with the shield 51, projecting thereover, serves todirect a beam of light directly upon the work operated upon, so that theline of cut, as for instance in a pattern, may be easily and quicklyfollowed. Tf it is desired to stop the rotation of the cutting disks theoperator merely releases the lever 42, which, due to its weight, fallsdownwardly by gravity, thereby raising the yoke 43, and disconnectingthe motor from the driving worm shaft 20.

I am aware that various details of construction may be varied through aWide range without departing from the principles of this invention, andI therefore do not purpose limiting the patent granted otherwise thannecessitated by the prior art.

I claim as my invention:

1. In a device of the class described, a movable carriage, a drivingmotor thereon with its armature shaft disposed vertically, a cuttingdisk, and a drive shaft geared to said disk and in alinement with anddriven by said armature shaft.

2. In a device of the class described, a movable carriage, a drivingmotor thereon with its armature shaft disposed vertically, a cuttingdisk, a drive shaft geared to said disk and in alinement with saidarmature shaft, and a clutch for connecting and disconnecting saidshaft.

3. In a device of the class described, a movable carriage, a drivingmotor thereon with its armature shaft disposed vertically, cutting disksdisposed one vertically over the other, a driving worm shaft mounted inalinement with said armature shaft, worm gear connections between saidshaft and said cutters, and a clutch for connecting said shafts.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

HARRY N. STETNMAN.

Witnesses:

CHARLES W. HILLs, Jra, FRANK K. HUDSON.

